cc linux-raid On Mon, 5 Jan 2009, whollygoat@xxxxxxxxxxxxxxx wrote:
I think growing my RAID array after replacing all the drives with bigger ones has somehow hosed the array. The system is Etch with a stock 2.6.18 kernel and mdadm v. 2.5.6, running on an Athlon 1700 box. The array is 6 disk (5 active, one spare) RAID 5 that has been humming along quite nicely for a few months now. However, I decided to replace all the drives with larger ones. The RAID reassembled fine at each boot as the drives were replaced one by one. After the last drive was partitioned and added to the array, I issued the command "mdadm -G /dev/md/0 -z max" to grow the array to the maximum space available on the smallest drive. That appeared to work just fine at the time, but booting today the array refused to assemble with the following error: md: hdg1 has invalid sb, not importing! md: md_import_device returned -22 I tried to force assembly but only two of the remaining 4 active drives appeared to be fault free. dmesg gives md: kicking non-fresh hde1 from array! md: unbind<hde1> md: export_rdev(hde1) md: kicking non-fresh hdi1 from array! md: unbind<hdi1> md: export_rdev(hdi1) I also noticed that "mdadm -X <drive>" shows the pre-grow device size for 2 of the devices and some discrepancies between event and event cleared counts. One last thing I found curious---from dmesg: EXT3-fs error (device hdg1): ext3_check_descriptors: Block bitmap for group 0 not in group (block 2040936682)! EXT3-fs: group descriptors corrupted! There is not ext3 directly on hdg1. LVM sits between the and the filesystem, so the above message seems suspect. I hope someone will be able to help me with this. I feel like the info above is pertinent, but I don't know where to go from here. Thanks -- whollygoat@xxxxxxxxxxxxxxx -- http://www.fastmail.fm - Does exactly what it says on the tin -- To UNSUBSCRIBE, email to debian-user-REQUEST@xxxxxxxxxxxxxxxx with a subject of "unsubscribe". Trouble? Contact listmaster@xxxxxxxxxxxxxxxx
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